(Wii Backup File System) indicates a file format typically used for running games via external USB loaders on homebrew-enabled consoles. Wii Wiki | Fandom
It might be a miswritten version of “wiiSM” (Wii Scene Mod) or “wiiGX” (USB Loader GX). Just Dance 2 -WBFS- -SD2E41- -NTSC- -wiiGM-
Because Just Dance 2 represents the "sweet spot" of Wii archiving. It is the last game in the series to feature: (Wii Backup File System) indicates a file format
In the warez scene, groups tag their releases. “wiiGM” might stand for Wii Game Manager or a specific ripping group like “WiiGM” (uncommon – major groups are WiERD, VENOM, or DMU). Just Dance 2 -WBFS- -SD2E41- -NTSC- -wiiGM-
: Plays a continuous stream of songs for an uninterrupted session. Top Tracks in Just Dance 2